Vol. 6 has title "Sketch of the history of the Philadelphia society for Promoting Agriculture, prepared for the celebration of the 150th anniversary of its foundation" and includes reprints of some early papers of the society
Vol. 1 includes a statistical account of the Schuylkill Permanent Bridge
No more published?
Vol. 1 published 1808, v. 2-3 by 1814, v. 4 about 1818, v.5, 1826, v. 6, 1939
Archival master stored at National Agricultural Library, Beltsville, MD : print master stored at remote facility